Starlight navigation is of highly strategic significance because it is not subject to electromagnetic interference and can provide absolute attitude information. Currently, star sensors are mainly developed for aerospace navigation. The necessity, the technical difficulties, and the effects to be achieved of applying them to single-soldier navigation still remain unclear. This paper first discusses the necessity of developing single-soldier star sensor navigation equipment: It can serve as guarantee equipment when other navigation equipment fails because it cannot be damaged by electromagnetic interferences; Its high directional accuracy can compensate for the orientation deficiency of single soldier satellite navigation equipment; It enables all-time, all-weather navigation with its ability to overcome certain meteorological factors. Technical characteristics of the single-soldier star sensor navigation are compared with those of the aerospace star sensor navigation, satellite navigation, and astrogeodesy. Key technologies in developing single-soldier star sensor navigation equipment are then presented, including reduction of meteorological influences, long-term maintenance of time datum and power supply, balance of system detection performance and system miniaturization. The results provide reference for the development of single-soldier star sensor navigation technology and the design and development of single-soldier star sensor navigation system.
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